vouchsafe
Word family nounvouchsafementvouchsafingverbvouchsafe
vouch·safe /vaʊtʃˈseɪf/ verb [transitiveT] old-fashioned formal TRUSTto promise or offer something, or tell someone something that they can be certain is the truth 惠予,赐予;允诺 vouchsafe• She made that quite clear: it was a triumphal return, although what the triumph was, was not vouchsafed.• They do not always accurately portray the degree of damage, nor do they vouchsafe how long the damage has been there. Origin vouchsafe (1300-1400) vouch + safe